Recent analyses show an increase in data center (DC) service downtime due to the increase in power supply outages caused by overloaded uninterruptable power supplies (UPSs). As a solution to the UPS overload problem, this letter presents a developed power distributor manager (PDM) that caps the power consumption of the dc by enforcing a power restriction on the running servers based on a UPS power minimization cost function. The PDM proposed controls the power consumption per UPS in a dc by means of processor time-sharing and dynamic frequency scaling, which eliminates UPS overloading problems, and thus reduces server outages.
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AL-Hazemi et al. (2019) studied this question.
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